Numbers k such that 7*2^k + 1 is a prime factor of a Fermat number 2^(2^m) + 1 for some m.
A280003
Numbers k such that 7*2^k + 1 is a prime factor of a Fermat number 2^(2^m) + 1 for some m.
Terms
- a(0) =14a(1) =120a(2) =290a(3) =320a(4) =95330a(5) =2167800
External references
- oeis: A280003